This study provides a simple introduction to photo-catalyst technology to degrade the air pollution in urban environment, in particular, NOx gases from automobiles. Moreover, it shows the spray coating technique was applied to effective coating on the surface of asphalt roads by using as-developed integral photocatalyst solution. In order to examine the slip resistance of asphalt surfaces, the BPT (British Pendulum Test) was used under drying and wetting conditions.

Abstract
 1. 서 론
 2. 실험방법
 3. 해석결과 및 고찰
 4. 결 론
 참고문헌

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